格拉管道的故障原因及处理方法
Failures and Trouble Shooting for Golmud——Lhasa Oil Product Pipeline
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摘要: 格拉成品油管道的故障主要有防腐层劣化、阴极保护度较低、焊接质量缺陷和人为破坏。为此提出了处理方法和预防措施, 建议对管道腐蚀与防护系统的技术现状和管道整体安全性进行科学评价; 对干线管道进行内外腐蚀、壁厚分布、损伤变形等方面进行检测; 引进国外先进的管道泄漏探测系统, 以及提高公众保护管道的意识等。Abstract: An analysis shows that the major failure in Golmud——Lhasa oil product pipeline includescoating deterioration, poor CP, weld defects, and human destrution. Therefore, some suggestions are put forward, including scientific evaluation on the status quo of corrosion and CP system of the line, inspection on internal/external corrosion, wall thickness distribution, damage and/or deformation, and introducing foreign leakage detection system.